KYORITSU 3323A - Manual (Page 5)

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２．Features
MODEL3321A/ 3322A/ 3323A are three-range insulation resistance
testers for testing low-voltage installation below 600V.
¡Designed to following safety standards:
IEC 61010-1, IEC 61010-031, IEC 61557
¡Small and light weight.
¡Auto-discharge function
When insulation resistance like a capacitive load is measured,
electric charges stored in capacitive circuits are automatically
discharged after measuring. Discharge can be checked with the
meter.
¡Color-coded scales for easy and correct reading
¡Power-on indicator on insulation resistance and battery check
ranges.
¡Backlight function to facilitate working at dimly illuminated
location or at nighttime work.
¡AC voltage measurement function
Measures AC voltage on all ranges without pressing the Test
button
¡Test leads with remote control switch
(voltage won't be outputted when the test lead is not connected.)
¡Robust housing case
¡Neck strap for both hand's operation
¡User-changeable test prod